Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - base4.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30256-57c6c2b57f) Lines: 1696 1845 91.9 % Date: 2025-05-08 09:19:02 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Z_dcba_rec	0
Z_ppgle	0
ext_pow	0
famat_Z_gcd	0
famat_idealfactor	0
famat_to_nf	0
idealHNF_Z_factor	0
idealapprfact	0
idealpseudomin_nonscalar	0
nfdivmodpr	0
nfkermodpr	0
nfpowmodpr	0
nfsolvemodpr	0
to_famat	0
vecpow	0
err_divexact	7
hnf_QC_QC	7
idealmin	7
nfmulmodpr	7
ramified_root_simple	7
idealappr	14
idealappr0	14
not_in_ideal	14
chk_vdir	21
hnf_Q_Q	21
idealintersect	21
idealismaximal_mat	21
mat_ideal_two_elt2	21
ZV_cba	28
in_ideal	28
trivial_merge	28
idealaddmultoone	35
idealismaximal_int	42
idealtwoelt2	42
ZV_cba_extend	49
idealdiv0	56
matreduce	63
hnf_Z_QC	70
idealaddtoone0	70
idealmul0	70
hnf_Q_QC	77
hnf_Z_ZC	77
idealismaximal	77
idealismaximal_i	77
idealcoprime	84
nfV_eltembed	84
nfV_idealhnf	84
nfweilheight	84
nfweilheight_i	84
isideal	91
vec_mulid	91
idealaddtoone	98
sunits_makecoprime	98
nf_coprime_part	126
gpidealfactor	189
idealhnf0	413
idealhnf	665
idealprodprime	666
famat_to_Fp_coprime	693
vecinv	826
idealprod	840
vecdiv	903
idealprodval	1917
idealtwoelt0	2485
idealpow0	2499
idealdown	3031
idealispower	3899
idealdivexact	5214
gpidealval	7119
ramified_root	7735
idealsqrtn_int	7742
famat_div_shallow	10304
make_integral	10920
_mul	11356
nf_get_Gtwist1	12597
twistG	12639
idealdivpowprime	13007
idealred_elt	13235
famatV_factorback	13765
idealmulred	17207
idealaddtoone_i	17640
pr_inv	17832
famat_to_nf_moddivisor	20118
ext_inv	20377
famat_sub	20931
famat_sqr	22923
idealfactor_partial	25501
famat_inv_shallow	26973
prV_e_muls	28441
Q_nffactor	28470
_idealmulred	28563
ext_sqr	33871
_idealsqrred	35642
_sqr	35642
idealcoprimefact	37191
pr_inv_p	38477
idealsqr	38904
idealsqr_aux	38904
idealdiv	39499
famatV_zv_factorback	46709
idealredmodpower	49398
famat_remove_trivial	53777
idealapprfact_i	54068
pr_uniformizer	58337
famat_pow	60642
ext_mul	60734
prV_primes	61452
famat_pow_shallow	62013
factorbackprime	62402
addmul_mat	65917
idealHNF_inv	68959
idealpowred	80208
prV_lcm_capZ	82026
idealadd	82640
famat_mulpow_shallow	88286
p_makecoprime	94836
idealtwoelt	97116
RM_round_maxrank	97629
idealredmodpower_i	98784
idealnorm	104937
idealinv	114892
get_random_a	117285
famat_mulpows_shallow	118436
nf_to_Fp_coprime	119865
to_Fp_coprime	123043
famat_pows_shallow	123083
idealred0	138579
nf_get_Gtwist	138586
idealpseudomin	142293
append	151939
famat_add	158577
famatsmall_reduce	179103
vecsqr	185983
Q_to_famat	197115
famat_inv	199330
famat_div	200144
famat_mul_shallow	200787
idealHNF_inv_Z	210454
ok_elt	223727
idealHNF_factor	240063
mat_ideal_two_elt	250034
idealmulelt	265416
idealfactor	268224
idealfactor_limit	268652
idealpows	274494
idealsqrprime	285745
idealHNF_Z_factor_i	285887
idealHNF_factor_i	285888
famat_reduce	296087
Z_to_famat	376321
idealnumden	379896
Z_cba	413007
famat_mul	447392
idealHNF_mul	470342
idealmul	507597
idealmul_aux	507597
Z_ppio	532903
ZM_famat_limit	568110
idealaddtoone_raw	713240
_idealaddtoone	730881
idealhnf_two	739908
idealmulpowprime	769233
idealpow	890006
idealpow_aux	890008
idealHNF_mul_two	923596
idealpowprime	1198505
idealpseudominvec	1204260
idealpseudored	1286011
idealhnf_principal	1311420
lcmuu	1589827
idealhnf_shallow	1722142
famat_makecoprime	2002980
to_famat_shallow	2688430
pr_hnf	3579607
Z_cba_rec	3766441
idealHNF_norm_pval	4041557
zk_pvalrem	4092156
nf_remove_denom_p	4137965
idealHNF_val	4177003
Fl_invgen	5717944
idealval	9394455
idealtyp	15845382
vecmul	16019325
Z_ppo	18151101
u_ppo	54224157

Generated by: LCOV version 1.16